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How to work around the lack of transactions in MongoDB?
...iewpoint (I have only worked with SQL databases so far), or whether it actually can't be done.
10 Answers
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How to define two fields “unique” as couple
...
There is a simple solution for you called unique_together which does exactly what you want.
For example:
class MyModel(models.Model):
field1 = models.CharField(max_length=50)
field2 = models.CharField(max_length=50)
class Meta:
unique_together = ('field1', 'fi...
Hidden features of Ruby
...
From Ruby 1.9 Proc#=== is an alias to Proc#call, which means Proc objects can be used in case statements like so:
def multiple_of(factor)
Proc.new{|product| product.modulo(factor).zero?}
end
case number
when multiple_of(3)
puts "Multiple of 3"
when multiple...
Which ORM should I use for Node.js and MySQL? [closed]
...ed Nov 14 '18 at 18:14
Patrick Gallagher
17322 silver badges1313 bronze badges
answered Oct 4 '11 at 10:26
dre...
Convert a byte array to integer in Java and vice versa
I want to store some data into byte arrays in Java. Basically just numbers which can take up to 2 Bytes per number.
8 Answe...
Automatically open Chrome developer tools when new tab/new window is opened
...eloper Tools in Pop-ups if they were open where you opened them from. For example, if you do not have Dev Tools open and you get a popup, it won't open with Dev Tools. But if you Have Dev Tools Open and then you click something, the popup will have Dev-Tools Automatically opened.
UPDATE:
Time has ...
How do I get an ISO 8601 date on iOS?
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Use NSDateFormatter:
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
NSLocale *enUSPOSIXLocale = [NSLocale localeWithLocaleIdentifier:@"en_US_POSIX"];
[dateFormatter setLocale:enUSPOSIXLocale];
[dateFormatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ssZZZZZ"];
[dateFormatter setCale...
Libraries not found when using CocoaPods with iOS logic tests
...ething like:
link_with 'MainTarget', 'MainTargetTests'
Then run pod install again.
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Detect element content changes with jQuery
...ible for any reason (you're using a complicated plugin or can't find any "callback" possibilities) then the jQuery approach I'd suggest is:
a. For simple DOM manipulation, use jQuery chaining and traversing, $("#content").html('something').end().find(whatever)....
b. If you'd like to do something ...
How to change the style of alert box?
...ality. The jQuery UI Dialogue does a lot of the work for you, working basically as I have described: Link.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>jQ...